[4,5,6,3,2,1]
第一趟
[4,5,6,3,2,1]
[4,5,6,3,2,1]
[4,5,3,6,2,1]
[4,5,3,2,6,1]
[4,5,3,2,1,6]
第二趟
[4,5,3,2,1,6]
[4,3,5,2,1,6]
[4,3,2,5,1,6]
[4,3,2,1,5,6]
第三趟
[3,4,2,1,5,6]
[3,2,4,1,5,6]
[3,2,1,4,5,6]
